Bilevel shelf unit



FIG. 1 is a perspective view of a bilevel shelf unit showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side elevational view being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a cross-sectional view taken along lines 7--7 of FIG. 2. 

The ornamental design for a bilevel shelf unit, as shown and described. 